If it's not a hardware proble, I find this very annoying. Even if sometimes updates are not for the better, this is a reason for me not to buy another TAG Heuer connected watch. Another one is, that you never know when they change the functions of the associated apps, like when they deleted the Ambassador watch faces for the THC46. And the information given on change like that is sparse.
On the other hand this is still to be considered a big experiment for a swiss watchmaker, and their courage to get into this can not be underestimated.